Battle of Gumo (78) — the same event in Book of the Later Han and Zizhi Tongjian

Book of the Later Han: The acting Sima of the Western Regions, Ban Chao, attacked Gumo and crushed it.; Zizhi Tongjian: In the intercalary month, Ban…

What each source says

Book of the Later Han (Hou Hanshu), Annals · AD 78 · 姑墨

The acting Sima of the Western Regions, Ban Chao, attacked Gumo and crushed it.

閏月,西域假司馬班超擊姑墨,大破之。
Location: 後漢書卷3 肅宗孝章帝紀 建初3年

Zizhi Tongjian (Comprehensive Mirror) · AD 78 · 姑墨

In the intercalary month, Ban Chao, the Western Regions Escort-Commissioner, led troops of Shule, Kangju, Yutian, and Kumi, numbering ten thousand, and attacked and defeated the stone city of Gumo, taking seven hundred heads.

閏月,西域假司馬班超率疏勒、康居、於窴、拘彌兵一萬人攻姑墨石城,破之,斬首七百級。
Location: 資治通鑑 卷046 (원문 단락 #3537, 78년)

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